Q12
A woman needs to work out how long it will take to drive to York.
20
G
She check...
Mathematics, 26.03.2021 01:00 Ree0628
Q12
A woman needs to work out how long it will take to drive to York.
20
G
She checks the journey on a website.
The distance from her house to York is 80 miles.
20 miles of the journey are through roadworks with a speed restriction of 40mph.
She should drive the rest of the journey at an average speed of 50mphβ
Answers: 1
Mathematics, 21.06.2019 17:30
In parallelogram abcd the ratio of ab to bcis 5: 3. if the perimeter of abcd is 32 find ab
Answers: 1
Mathematics, 21.06.2019 18:30
Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.
Answers: 1
Mathematics, 21.06.2019 18:30
The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy β 15x = 125 b) 5xy + 15x = 125 c) 15x2 β 5xy = 125 d) 15x2 + 5xy = 125
Answers: 2
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